Attachment for cleaning cotton-gin saws.



Not 847,753,

PATENTBD MAR. 19, 190.7.-

l H. J. PITZPATRIGK- I ATTAGHMEN'TEOR CLEANING COTTON GIN-sAws.

. APPLICATION FILED APBB. 1906.

ZSHIEBTB-SHEET Z.

THE NoRRls PETERS co4. wAsm'NaraN. u. c'.

UNITED sTATEs PATENT OEEIOE.

HENRY JACKSON EITZP-ATEICK, OE ATHENS, GEORGIA. ATTACHMENT FOR CLEANING` COTTON-GIN sAws.

Specication of Letters Patent.

Patented March 19, 1907.

Application nea April 6,1906. serial No. 310,233.

To all whom t may con/cern:

resident of Athens, in the county of' Clarke l and State of Georgia, have invented a new l and Improved Attachment for Cleaning Cotl' ton-Gin Saws, of which the following isa full, I clear, and eXact description.

Ny invention relates .toI cotton-gms, my more particular object being to produce a means for cleaning the gin-'saws While inaction.

Reference is to be had to the accompanying drawings, forming a' part of this specification, in which similar charactersl of reference indicate corresponding parts in all the figures.

Figure 1 is a vertical central section through cotton-gin equipped with my invention. ig. 2 is a rear elevation of the' attachment for cleaning the gin-saws. Fig. 3 is a front elevation of the re'voluble wire brush constituting a part of thev attachment', the bearings being removed for the sake of clearne'ssf. Fig. y 4 is a plan view of the revolubl'e brush for cleaning the' saws, the driving-'pulley being removed. Fi 5is averti'cal section through the revoluble rush, taken' upon the line 5 5 of Fig. 3'. Fi is a front elevation' of a pair of brush-teetli, taken from the revoluble brush'. Fig. 7 is a side elevation of they belt for continuously driving the saw-pulley and of the shifting mechanism' for driving the brushepulley intermittently, and Fig. 8 is a front elevation of the mechanism shown in Fig. 7.

The gin-casing is showni at 7 and the seedcotton chamber at 8, the latter being hinged at 9 upon the casing and provided with a opper 10 of the usual construction. The brush-cylinder is shown at 11, the lint-chute at 12, and the mote-board at 7a, these parts also being of the usual or any preferred construction. The gin-saws are shown at 13 and are spaced apart by spacing-blocks 13a, being thus formed into a substantially cylindrical member designated as the gin-cylinder. At 13b is shown a pulley mounted rigidly upon a shaft 13C, upon which the saws 13 are supported concentrically. The grid is shown at 14 and is provided with a handle 15, whereby it may be manipulated in the manner well known in the art. Mounted below the gin-cylinder are vertical guides 16, provided with bearin s 17, slidably mounted therein, and upon t ese vbearings is mounted l stops therefor,

the' revoluble brush 18, nals 18a 18h, which A pulley 19 is b'le brush 18.

Adjusting-screws 20, provided with locknuts-21, are mounted upon the guides 16 and engagel the bearings provided with jourengage the bearings 17. used for actuating the revoluand are so arrangd that by running the screws 20 upl or down and ljocking the same in position by means of the locknu-ts 21 the bearings 17 may be adjusted so as to be stopped upon their upward movement at levels' independently of eachother.

Arcuate bearing members 22 are mounted upon the lower faces of the bearings 17 and are engaged, respectively, by cam-lugs 23, mounted upon a rocking shaft 24, controllable by a hand-lever 25', as will be understood from Fig. 1. Binder-plates 26V are mounted upon the top and bottom of the revolnble brush-holder 18, and through these binder-plates pass U-shaped wire staples 29, each staple comprising, in effect, twoI brush'- teeth. The central' portion of `each sta le is sunken into a groove 30 in the brush-hol' er 18, andthe binder-plates are held in position by means of bolts 28. The bearings 17 are furtherprovided withV lugs 27 for holding them true with reference toV the guide 1'6. The revoluble brush 18' travels in such directionV that the teeth 29 move in: the same di"- rection as the teeth of the gin-saws 13', but at a higher speed The arrangement is such that a wire staple 29 straddles a saw 13.' When, therefore, the ginecylinder provided with the saws is inmotion and the revoluble brush' 18v is also in motion', the wire brushteeth tend to remove any substance which may cling to the saw-teeth.

It will be understood that in this art the gin-saws must always be dry and that in ginning wet or green cotton the saws praccally become clogged. The lint when freshly the seed and when slightly moist through any cause whatever is eX- ceedingly adhesive and clings to the saws, thereby impairing their efficiency and rendering the perfect action of the gin impossible. When the saws are thus gummed or clogged with wet or green cotton lint, they can no longer separate the lint from the seed, and it is necessary to stop the gin, take out the roll of cotton, remove certain parts of the gin, and clean the saws by the slow process of taking off the wet lint by hand. This trouble is avoided by the use of my 17, forming liimiting- IOO IOS

`invention. Vhenever the saws become i clogged, as above described, the supply of cotton is stopped and the saws are allowed to turn idly through the grid. The handl lever 25 is now depressed, 'causing the lugs 23 to engage the arcuate members 22, thereby elevating the bearings 17 against the adjusting-screws 20. The drive-pulley 19 is thus brought into engagement with the pulley 13b and is caused to rotate, as above de l scribed. The pulley 19 being of greater diameter than the pulley 13b, the speed of the brush is greater than that of the saws. The result is that the members 29, being of spring-wire and being somewhat in the nature of bristles, remove the gummed cotton stuck upon the saws and throw the same i downward toward the floor by centrifugal force. The gin bein@ allowed to run this way a few minutes renders the saws perfectly clean and ready for further action.

The mechanism for continuously driving the saw-pulley and for intermittently driving the pulley used for propelling the steel brush is shown more articularly in Figs. 7 and 8. The casing 7 ofpthe gin rests upon the iioor 31, the power being supplied from a shaft 32 below this iioor. Mounted rigidly upon the shaft 32 is a driving-pulley 33, which is connected by a belt 34 with the pulley 13b, mounted upon the shaft 13C, as above del scribed. Pivoted upon the 'ournal 18a is a l bearing-sleeve 35, connected rigidly with a link 36, the lower end of which is provided with a bearing-sleeve 37, integral therewith. A pulley 38 is connected by a belt 39 with the pulley 19, which, as above explained, supplies power to the revoluble brush 18. Another pulley 40 is by means of a revoluble i sleeve 41 connected rigidly with the pulley i 38, so that the pulleys 38 40 may practically be considered as a single revoluble member. Rigidly connected with the sleeves 35 and the link 36 is a lever 42, which moves over a quadrant 43 and is provided with manually-operated ymechanism 44 for l holding the lever in different positions, as will be understood from Fig. 7. The driving-shaft 32 being turned by any appropriate power, motion is transmitted by the belt 34 to the pulley 18b and thence to the shaft 13C, being thus communicated to the saw-cylinder. By depressing the lever 42 the link 36 is swung outwardly, as indicated in full lilies in Fig. 7. By raising the lever 42 the pulley 40 is brought into engagement with the belt 34, as indicated by dotted lines in Fig. 7. By this means power is communicated from the belt 34 through the pulleys 40 and 38 and belt 39 to the pulley 19 and thence to the revoluble brush 18. lf now the shaft 32 be rotated continuously, the revoluble brush 18 may be thrown into or out of action, as desired, accordingly as the lever 42 is raised or lowered.

The device above described has been tried in actual practice and has been found to be effective.

Having thus described my invention, I claimas new and desire to secure by Letters Patent- In an apparatus of the character described, the combination of a gin-cylinder provided with revoluble saws, guides disposed adjacent to said gin-cylinder, bearings mounted within said guides and movable relatively thereto, adjustable limiting-stops connected with said guides for the purpose of stopping the movements thereof relatively to said gin-cylinder, arcuate members mounted upon said bearings, a rocking shaft disposed adjacent to said revoluble shaft and provided with cam-lugs engaging said arcuate members, and a hand-lever connected with said rocking shaft for actuating the same.

In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.

lillNltlv JACKSON lll'lZlA'lltlCK. Witnesses 1 I. H. RUCKER, W. l?. BROOKS. 

